WO2018090316A1 - Procédé de fabrication de douille de réduction d'extrémité de câble - Google Patents

Procédé de fabrication de douille de réduction d'extrémité de câble Download PDF

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Publication number
WO2018090316A1
WO2018090316A1 PCT/CN2016/106355 CN2016106355W WO2018090316A1 WO 2018090316 A1 WO2018090316 A1 WO 2018090316A1 CN 2016106355 W CN2016106355 W CN 2016106355W WO 2018090316 A1 WO2018090316 A1 WO 2018090316A1
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WO
WIPO (PCT)
Prior art keywords
steel pipe
seamless steel
end portion
taper sleeve
cold extrusion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/106355
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English (en)
Chinese (zh)
Inventor
蔡卫东
葛俊旭
王坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nantong Chang Rong Electromechanical Co Ltd
Original Assignee
Nantong Chang Rong Electromechanical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nantong Chang Rong Electromechanical Co Ltd filed Critical Nantong Chang Rong Electromechanical Co Ltd
Priority to PCT/CN2016/106355 priority Critical patent/WO2018090316A1/fr
Publication of WO2018090316A1 publication Critical patent/WO2018090316A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Definitions

  • the invention relates to the technical field of mechanical manufacturing, and in particular to a method for manufacturing a novel rope head taper sleeve.
  • the casting process includes waxing, trimming, tree-forming, viscose, shell-making (more than 5 layers), dewaxing, air drying, roasting, steel making, casting, sand cleaning, Cut and raise the riser, sanding, and normalizing 14 ways to shape.
  • the production of the rope head taper sleeve by the casting process has high production cost and poor production efficiency.
  • the length and outer diameter of the seamless steel pipe are set according to the size of the taper sleeve to be produced, the seamless steel pipe has a first end portion and a second end portion;
  • the first end portion of the seamless steel pipe has a first oblique cone, the first oblique vertebral body forms a first right-angled trapezoid in a radial cross section, and the first oblique vertebral body is subjected to cold extrusion processing, a side of the right angle side of the radial section of the first oblique body forms a transition slope with the second end;
  • the second end of the seamless steel tube has a second oblique cone
  • the second oblique body has a radial cross section Forming a second right angle trapezoid, one side of the right angle side of the radial section of the second oblique body is connected to the first oblique body through the transition slope;
  • the cold extrusion processing of the first end portion of the seamless steel pipe comprises at least one cold extrusion processing of the first end portion of the seamless steel pipe, the first end of the seamless steel pipe
  • the number of times of cold extrusion processing is the number of times the first end portion of the seamless steel pipe is subjected to cold extrusion processing in accordance with the outer diameter of the first end portion of the taper sleeve to be produced.
  • the seamless steel pipe is subjected to cold extrusion processing through two molds.
  • the cold extrusion processing of the second end portion of the seamless steel pipe comprises at least one cold extrusion processing of the second end portion of the seamless steel pipe, the second end of the seamless steel pipe
  • the number of times of cold extrusion processing is the number of times the second end portion of the seamless steel pipe is cold-extruded according to the outer diameter of the second end portion of the taper sleeve to be produced.
  • the seamless steel pipe is subjected to cold extrusion processing by two molds.
  • the seamless steel pipe is subjected to cold extrusion processing by a hydraulic press or a crank press, and the tonnage of the hydraulic press or the crank press The pressing force selection required to form the second end of the taper sleeve according to the second end of the seamless steel pipe.
  • the manufacturing method of the present application has fewer steps than the manufacturing method of manufacturing the taper taper sleeve in the casting process. Significantly increase production efficiency while reducing production costs.
  • FIG. 1 is a schematic view of a rope head taper sleeve according to an embodiment of the present application.
  • FIG. 2 is a flow chart of a production process of a rope head taper sleeve according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a seamless steel pipe that completes step S11 according to an embodiment of the present application.
  • step S12 is a schematic view of a seamless steel pipe that completes step S12 according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a seamless steel pipe that completes step S13 according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a seamless steel pipe that completes step S15 according to an embodiment of the present application.
  • FIG. 1 is a schematic view of a taper sleeve 1 according to an embodiment of the present application; as shown in the drawing, the present application provides a production process of a taper sleeve for manufacturing a rope head as shown in FIG. 1 .
  • the taper sleeve has a circular top surface 10 and a bottom surface 13 and has a first end portion 14 and a second end portion 15.
  • the first end portion 14 has a screw hole 141 at one end thereof at the first end portion 14
  • the bottom surface 13 has a vertical opening 131.
  • the first end portion 14 has two perforations in the radial direction. The two through holes are opposite.
  • the second end portion 15 has an opening at one axial end, and the bottom surface 13 has a slope 132 on the top surface 10.
  • FIG. 2 is a flow chart of the production process of the taper sleeve of the present application, the rope cone of the present application.
  • the sleeve is produced by the die forging process using the seamless steel pipe.
  • the main production processes include: S10, blanking; S11, the first cold extrusion processing of the first end of the seamless steel pipe, S12, the first of the seamless steel pipe.
  • the second end is subjected to a second cold extrusion process to form a transitional bevel, S13, a cold extrusion process on the second end of the seamless steel pipe, S14, and a flattened seamless steel pipe after being cooled and extruded, S15.
  • step S10 is performed to obtain a seamless steel pipe.
  • the size of the seamless steel pipe is set according to the size of the taper sleeve to be produced, wherein the seamless steel pipe has a first end and a second end, and the first end One end of the portion has a first opening, and one end of the second end portion opposite the first end has a second opening.
  • step S11 the first end portion 21 of the seamless steel pipe 2 is subjected to a first cold extrusion process, and the seamless steel pipe 2 is subjected to a first cold extrusion process through two molds.
  • the first end portion 21 of the seamless steel tube 2 has a first hollow cylinder 211 and a first inclined cone 212.
  • the first hollow cylinder 211 has a first opening 213 at one end and a first inclined cone 212 at the other end.
  • the cross section of the first oblique cone 212 has a beveled edge 214 and a right angled edge 215; the second end 22 is a second hollow cylinder 221, and one end of the second hollow cylinder 221 is connected to the first oblique cone of the first end 21 212, the other end of which has a second opening 222.
  • step S12 is performed to perform a second cold extrusion process on the first end portion 21 of the seamless steel pipe 2, and the second cold extrusion of the seamless steel pipe 2 in step S11 is performed through two molds.
  • the outer diameter of the first opening 213 of the first end portion 21 of the seamless steel pipe 2 is reduced, and the depth of the first opening 213 extending toward the second end portion 22 is also reduced, which also indicates the length of the first hollow cylinder 211. Shortened, the horizontal length of the first inclined cone 212 is elongated.
  • Extrusion processing and the number of cold extrusion processes depends on the first end portion 14 of the taper sleeve 1
  • the first oblique vertebral body is subjected to cold extrusion processing after S12, and a side of the right angle side and a second end portion form a transition slope in the radial section of the first oblique vertebral body.
  • the outer end 14 of the taper sleeve 1 of the present application has an outer diameter of 28 mm
  • the outer diameter of the seamless steel pipe 2 before processing is 45 mm
  • the limit of the seamless steel pipe 2 is between 0.7 and 0.75.
  • the ratio of the outer diameter of the first end portion 14 of the taper sleeve 1 to the outer diameter of the originally unprocessed seamless steel tube 2 is 0.62, which is smaller than the limit shrinkage coefficient, so that it cannot be disposable at one time.
  • the outer diameter of the first end portion 21 of the seam steel pipe 2 is reduced from 45 mm to 28 mm.
  • the present application uses two cold extrusion processes on the first end portion 21 of the seamless steel pipe 2 to gradually reduce the outer diameter of the first opening 213 of the first end portion 21 of the seamless steel pipe 2, the first cold extrusion
  • the outer diameter of the first end portion 21 of the seamless steel pipe 2 is first reduced to 33.75 mm, and the outer diameter and processing of the first opening 213 of the first end portion 21 of the seamless steel pipe 2 processed by the first cold extrusion are processed.
  • the ratio of the outer diameter of the first opening 213 of the first end portion 21 of the front seamless steel pipe 2 is 0.75, which exactly meets the upper limit of the limit shrinkage coefficient, so that the first opening 213 of the seamless steel pipe 2 can be used at one time.
  • the outer diameter is reduced from 45mm to 33.75mm.
  • the outer diameter of the first end portion 21 of the seamless cold-rolled steel tube 2 which has been subjected to the first cold extrusion processing is reduced to 25.3 mm by the second cold extrusion processing, and the seamless steel pipe 2 subjected to the second cold extrusion processing
  • the ratio of the outer diameter of the first opening 213 to the outer diameter of the first opening 213 of the seamless cold-worked seamless steel pipe 2 is 0.75, which just meets the upper limit of the limit shrinkage factor, so that the seamlessness can be seamless
  • the outer diameter of the first opening 213 of the steel pipe 2 is reduced from 33.75 mm to 25.3 mm.
  • the present application is a preferred embodiment of the cold extrusion processing of the first end portion 21 of the seamless steel pipe 2, which uses the minimum number of cold extrusion processes to reduce the cost of the machining process and improve the processing efficiency.
  • the number of cold extrusion processes can be increased, and will not be described here.
  • step S13 is performed, the second end portion 22 of the seamless steel pipe 2 is subjected to sub-cold extrusion processing, and the seamless steel pipe 2 completing step S12 is cold-extruded through two molds, and the seamless steel pipe 2 is
  • the second end portion 22 is formed by the second hollow cylinder 221 to form a second oblique cone, the second oblique cone has a radial cross section of a right angle trapezoid, and the right angle side of the right angle trapezoid and the first oblique cone pass The transition slopes are connected to each other
  • the outer diameter of the second opening 222 of the two end portions 22 conforms to the outer diameter of the opening 151 of the second end portion 15 of the taper sleeve, and the second end portion 22 of the seamless steel tube 2 can be subjected to only one cold extrusion process.
  • the ratio of the outer diameter is 0.73, which is larger than the lower limit of the ultimate necking coefficient of the seamless steel pipe 2, so that the outer diameter of the second opening 222 of the seamless steel pipe 2 can be reduced from 45 mm to 33 mm at one time.
  • step S13 the cold extrusion process is performed using a hydraulic press, and the tonnage of the hydraulic press is selected according to the pressing force required to form the second end portion 15 of the taper sleeve of the second end portion 22 of the seamless steel pipe 2, and is pressed.
  • the force can be calculated by the calculation formula of the pressing force, and the calculation formula is
  • P is the pressing force of the pressing part
  • K is the coefficient related to the selected equipment
  • F is the projected area of the forging perpendicular to the pressing force
  • ⁇ b is the strength authority of the metal at the extrusion die forging temperature
  • D is the original outer diameter of the seamless steel pipe 2
  • d is the outer diameter of the opening of the second end portion 15 of the rope head taper 1.
  • This application uses a hydraulic press, so the K factor is 10, F is 1590mm 2 , D is 45mm, d is 35.48mm, ⁇ b is 245MPa, the above values are brought into the calculation formula, and the P extrusion is 2665690N, so this application uses The 315 ton hydraulic press is cold extruded.
  • the hydraulic press can be replaced by a crank press, wherein the number of strokes of the crank press is less than 30 times and 40 times per second, and the K factor is 12.5; the number of strokes of the crank press is greater than 30 times and 40 times per second, K factor Is 15.
  • step S14 is performed, flattening, and the seamless steel pipe 2 is flattened by two molds, the two molds are respectively located on the left and right sides of the seamless steel pipe 2, and the seamless steel pipe 2 is extruded, so that The seamless steel tube 2 is flat.
  • step S15 is performed to vertically cut off the first slope 261 of the first end portion 21 of the seamless steel pipe 2, and form a vertical opening on the first end portion 21, as shown in FIG.
  • step S16 is performed to strike the first opening 213 of the first end portion 21 of the seamless steel pipe 2.
  • the hole tapping, the first end portion 14 has two perforations in the radial direction, and the two perforations are opposite.
  • the above manufacturing method is a preferred embodiment of the present application, and the manufacturing method of the present application can be adjusted according to the size of the taper sleeve to be produced, especially the cold extrusion of the first end and the second end of the seamless steel pipe.
  • the number of press processes can be adjusted.
  • the taper taper sleeve of the present application is produced by cold extrusion processing using a seamless steel pipe, and the casting process is used in the past, and the production process of the present application is performed. Compared with casting and processing, it can increase production efficiency, save raw materials and save production costs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'une douille de réduction d'extrémité de câble (1), qui utilise un tube en acier sans soudure (2) et qui produit la douille de réduction d'extrémité de câble (1) au moyen d'un traitement d'extrusion à froid d'un processus de forgeage de matrice. Le procédé de fabrication de douille de réduction d'extrémité de câble (1) comprend les étapes consistant à : poinçonner, exécuter le traitement d'extrusion à froid sur une première partie extrémité (21) du tube en acier sans soudure (2), exécuter un traitement d'extrusion à froid sur une seconde partie extrémité (22) du tube en acier sans soudure (2), aplatir le tube en acier sans soudure (2), et exécuter un fraisage, un perçage et un taraudage sur le tube en acier sans soudure (2). Le procédé de fabrication présente moins de processus qu'un procédé de fabrication d'une douille de réduction d'extrémité de câble qui utilise un processus de coulée, et améliore ainsi significativement le rendement, tout en réduisant les coûts de production.
PCT/CN2016/106355 2016-11-18 2016-11-18 Procédé de fabrication de douille de réduction d'extrémité de câble Ceased WO2018090316A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/106355 WO2018090316A1 (fr) 2016-11-18 2016-11-18 Procédé de fabrication de douille de réduction d'extrémité de câble

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/106355 WO2018090316A1 (fr) 2016-11-18 2016-11-18 Procédé de fabrication de douille de réduction d'extrémité de câble

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WO2018090316A1 true WO2018090316A1 (fr) 2018-05-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111015128A (zh) * 2019-12-31 2020-04-17 江阴燎原装备制造有限公司 内锥套的制造方法
CN111960216A (zh) * 2020-07-07 2020-11-20 广州淮工精诚工业科技有限公司 一种绳头锥套及其冲压生产工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1159371A (zh) * 1997-03-05 1997-09-17 许福林 一种用挤压成型法加工制造锥形管件的方法
CN101850397A (zh) * 2009-03-31 2010-10-06 上海重型机器锻件厂 大型圆形筒体的锻造方法及其采用的三点砧
US20120042494A1 (en) * 2010-08-17 2012-02-23 Fay James E Rope thimble with closed curve
CN105458636A (zh) * 2016-02-02 2016-04-06 南通昌荣机电有限公司 一种绳头锥套的生产工艺
CN105537882A (zh) * 2016-02-02 2016-05-04 南通昌荣机电有限公司 一种绳头锥套的生产工艺
CN205423687U (zh) * 2016-03-11 2016-08-03 南通昌荣机电有限公司 一种连续冷锻电梯钢丝绳连接装置
CN105855798A (zh) * 2016-03-11 2016-08-17 南通昌荣机电有限公司 一种新型绳头锥套的制造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1159371A (zh) * 1997-03-05 1997-09-17 许福林 一种用挤压成型法加工制造锥形管件的方法
CN101850397A (zh) * 2009-03-31 2010-10-06 上海重型机器锻件厂 大型圆形筒体的锻造方法及其采用的三点砧
US20120042494A1 (en) * 2010-08-17 2012-02-23 Fay James E Rope thimble with closed curve
CN105458636A (zh) * 2016-02-02 2016-04-06 南通昌荣机电有限公司 一种绳头锥套的生产工艺
CN105537882A (zh) * 2016-02-02 2016-05-04 南通昌荣机电有限公司 一种绳头锥套的生产工艺
CN205423687U (zh) * 2016-03-11 2016-08-03 南通昌荣机电有限公司 一种连续冷锻电梯钢丝绳连接装置
CN105855798A (zh) * 2016-03-11 2016-08-17 南通昌荣机电有限公司 一种新型绳头锥套的制造方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111015128A (zh) * 2019-12-31 2020-04-17 江阴燎原装备制造有限公司 内锥套的制造方法
CN111015128B (zh) * 2019-12-31 2021-05-18 江阴燎原装备制造有限公司 内锥套的制造方法
CN111960216A (zh) * 2020-07-07 2020-11-20 广州淮工精诚工业科技有限公司 一种绳头锥套及其冲压生产工艺
CN111960216B (zh) * 2020-07-07 2024-02-27 广州淮工精诚工业科技有限公司 一种绳头锥套及其冲压生产工艺

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